Added comments to source code

In Javascript/airgap.js

@@ -1,7 +1,9 @@
-var player;
+var player; // Define "player" var to make my code linter happy
 
-function start() {
-	var logs = document.getElementById('logs');
+function start() { // Start Web Worker & send song data to player
+	var logs = document.getElementById('logs'); // Define log element
+
+	// Create Web Worker if it doesn't already exist
 	if (window.Worker && typeof(player) == "undefined") {
 		var player = new Worker("worker.js");
 		window.player = player; // Make variable Global
@@ -9,11 +11,13 @@ function start() {
 			var data = event.data;
 			window.logs.value += data;
 		};
+
+		// Send song data to player
 		var song = document.getElementById("tones").innerHTML;
 		player.postMessage(song);
 	}
 }
 
-function end() {
+function end() { // Stops the Web Worker
 	player.terminate();
 }

In Javascript/worker.js

@@ -11,7 +11,7 @@ function now() {
 var NSEC_PER_SEC = 1000000000;
 var register = 3.1415;
 
-function square_am_signal(time, freq) {
+function square_am_signal(time, freq) { // This funcion generates the radio waves
 	postMessage("\nPlaying / " + time + " seconds / " + freq + "Hz");
 	var period = NSEC_PER_SEC / freq;
 	var start = now();
@@ -29,7 +29,7 @@ function square_am_signal(time, freq) {
 	}
 }
 
-function play(song) {
+function play(song) { // Parse song data, and call on required scripts to run it
 	song = song.split("\n");
 	var length = song.length;
 	var line, time, freq;
@@ -48,13 +48,13 @@ function play(song) {
 	close(); // Close Web Worker
 }
 
-function pause(time) {
+function pause(time) { // A useless function to run when there is no noise to play
 	postMessage("\nPaused / " + time*.001 + " seconds");
 	var dt = new Date();
 	while ((new Date()) - dt <= time) { /* Do nothing */ }
 }
 
-onmessage = function(event) {
+onmessage = function(event) { // Recieve song data from main page
 	var data = event.data;
 	play(data);
 };